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6 marks
Study Figure 2a

Figure 2a
Relative global ice volume over the last 450000 years
Explain the role of Milankovitch cycles in causing variations in the relative global ice volume.
(6)
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Exam code: 9GE0
Study Figure 2a

Figure 2a
Relative global ice volume over the last 450000 years
Explain the role of Milankovitch cycles in causing variations in the relative global ice volume.
(6)
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Study Figure 2b in the Resource Booklet.

Figure 2b
The distribution of permafrost and mean annual air temperature across Canada
Explain the role of mean annual air temperature in influencing the distribution of permafrost across Canada.
(6)
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